Blower for boilers.



H. A. HIGGINS.

BLOWER POR BOILERS. APPLIGA-TION FILED JULY, 1911. 13042676, Patented Oct. 29, 192.

2 SHEETS-SHEET l.

H. A. HIGGINS. BLOWER FOR BOILERS.

APPLICATION FILED JULY 5,1911.

Patented Oct. 29

SHEET 2.

2 SHEETS ama/mm; .Far/y A. .Eff/'Wikia iNi'rED' STATES. PATENT oFFicE.

HARRY A. HIGGINS, 0F DETROIT, MICHIGAN, ASSIG-NOR '10 DIAMOND IPOWE SPECIALTY CO., OF DETROIT; MICHIGAN.

Specicatoii of Letters Patent.

BLOWER FOR BOILRS.

Patented oet. 29,1912.

Application led July 5, 1911.' Serial No. 636,931.

' tuating the same.

The invention has furthermore for its object the provision of means. wherebythe parts which are exposed to the flames issuof the rear' wall of a boiler-setting havinging through the boiler tiues, may be guard.

ed against burning out, more'esp-ecially pertaining to the steam ordistribution pipe which is in the present-instance jacketed by fire-proofing material such as asbestos or the like.

Further objects of the invention will hereliiiafter appear and b e particularly defined in the claims. L

The invention has been 'clearlyllustrated inthe accompanying drawings in .which similar characters denote similar parts, and

in which- Figure 1 is a fragmental vertical section my improved blower applied thereto Fig. 2 is a front view of the operating mechanism; Fig. 3 represents a top view with the blower in its retracted position, and Fig. 4 is a detail of the Steam-distributing or blower pipe.

In the drawings 10 denotes a rear portion of a boiler setting wit-hin which ,is disposed a boiler shell llhaving iues 1-2. Held in the rear wall of the setting is a stationary cylindrical tube 13 provided at its inner end with a cap 13 for packing and holding a sleeve 14. in which a steam pipe 15 is mounted for longitudinal and rotative movements. rThe inner end of the tube has a distributing pipe 1G extending radially therefrom and provided with a series of nozzles'17 so ar ranged that when said pipe 15 is rotated, the nozzles willblow steam into the ends of the severalboiler tubes 12.V L.

The outer end'of tlie steam pipe 15 carriesa screw-threaded collar-yoke 18 `provided with a hub19 in which an operating boiler wall.

a shut-off valve 24. A stub-lever 25 is piv oted on the outer end of the stein 20 and carries-one end of a link 26 which has a pin 27 adapted to be placed into any one of al series of apertures 28 formed in a bracket arm 29. which preferably extends horizontally from the casing 22 and is secured to an extension 22 thereof. According tothe space between-the rear wall of the boiler setting and tite" boiler room, the pin 27 may be placed so that a lever 30 placed--in the stub-lever 25 may have the requiredroom to swing 1n for the purpose of projecting the steam pipes, into the combustion space S (as shown in Fig. l), or to withdraw the same into position shown in Fig.-3, in which the distributer pipe is illustrated resting upon a metal-covered ledge 31 formed in the Hence it will be seen that the products of combustion cannot come into directI contact with the pipe.

steam pipe against burning-out, these means consisting of a jacket of asbestos-A or the like surrounding said pipe and inclosed by a casing-hub 32. Ina similar manner the free' end of the pipe or its end-cap 33 is pro` tecte/d by an asbestos disk .34 held in place by a cap`35 in engagement with the casing tube- 32. By this construction the life of the distributinw pipe is very much enhanced, and-if desired, the elbow 36 whereby the steam pipe and distributer are connected .may have ribs36 between which asbestos packed in place to protect the same from the flame issuing through the flues.

I claim 1. The combination with a steam supply pipe, of a steam-tube rotatable and longitu,.

dinally movable in said pipe, a distributer pipe radially extending from said tube, and a linkage-'comprising an oscillatory lever Means are provided for guarding the' i having a fulcrum-connection with andfor' controlling said tube to swing the distributor pipe and also to move the saine with said tube into projected or retracted position.

2.*The combination with a steam supply pipe, of a steam-tube rotatable and longitu- Pipe,

r of a steam pipe extending rfw said a tub@ joulmle therem, a d. trlbui, ipa

yconnecting wid lavar and massima s, Steam pp@ extending from said casing.

1th@ Revers; mlklwmg a pm adjuszbly spaced miseri the hmmm@ 'evm'ff an@ having 'pin adapiti emaef' any one @Lig said apertums t@ mi? the @51- smid 'asbasiaos and nipples cmmecml; sim.

pipe and "tuba" v y En esmomf whereof x my sgmwe n pres/snes mi tw@ *wtmse HARRY A. HEGGFES. Wmeses;

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